TinySec: A Link Layer Security Architecture for Wireless Sensor ...
TinySec: A Link Layer Security Architecture for Wireless Sensor ...
TinySec: A Link Layer Security Architecture for Wireless Sensor ...
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Keying<br />
• Simple mechanism: use a single pair of keys<br />
<strong>for</strong> all nodes<br />
– Entire network vulnerable to a single-node exploit.<br />
• <strong>Link</strong> keying: use separate keys <strong>for</strong> every pair<br />
of nodes that communicates<br />
– Key distribution is complex<br />
• Group keying: Group nodes together, use<br />
different keys <strong>for</strong> each group.